/*
 * This file is part of the Sx Framework Library.
 * 
 * Copyright (C) 2013 University of Colorado Denver
 * <min.choi@ucdenver.edu> <shane.transue@ucdenver.edu>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
 * DEALINGS IN THE SOFTWARE.
 */
#ifndef SX_ABSTRACT_RENDERER_H
#define SX_ABSTRACT_RENDERER_H

#include <sxRendererBase.h>

namespace Sx {
namespace Graphics {
namespace Rendering {

/*
 * Provides the abstract interface that all renderers can be referenced by.
 * This class provides an extra level in the rendering hierarchy that does not
 * depend on the implementation of the renderer type, rather it is only
 * defined by the graphics context type, root of the abstract object type
 * hierarchy, and the root of the physical representation hierarchy. This class
 * can be used to reference any renderer given that the provided types match.
 */
template <typename BaseGraphicsContextType, typename BaseObjectType, typename BasePhysicalRepresentationType>
class AbstractRendererBase : public RendererBase<AbstractRendererBase<BaseGraphicsContextType, BaseObjectType, BasePhysicalRepresentationType>, BaseGraphicsContextType, BaseObjectType, BasePhysicalRepresentationType> {
public:
	AbstractRendererBase(const std::shared_ptr<BaseGraphicsContextType>& graphicsContext);
	virtual ~AbstractRendererBase();

	virtual bool construct(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, BasePhysicalRepresentationType* const physicalRepresentation) = 0;
	virtual void update(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, float dt) = 0;
	virtual void render(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, BasePhysicalRepresentationType* const physicalRepresentation) = 0;
};

template <typename BaseGraphicsContextType, typename BaseObjectType, typename BasePhysicalRepresentationType>
Sx::Graphics::Rendering::AbstractRendererBase<BaseGraphicsContextType, BaseObjectType, BasePhysicalRepresentationType>::AbstractRendererBase(const std::shared_ptr<BaseGraphicsContextType>& graphicsContext) : RendererBase(graphicsContext) {}

template <typename BaseGraphicsContextType, typename BaseObjectType, typename BasePhysicalRepresentationType>
Sx::Graphics::Rendering::AbstractRendererBase<BaseGraphicsContextType, BaseObjectType, BasePhysicalRepresentationType>::~AbstractRendererBase() {}

/*
 * Intermediary between the abstract renderer base representation and the
 * implementation of the renderer class that provides the static polymorphism
 * mechanism.
 */
template <typename RendererImplementationType, typename BaseGraphicsContextType, typename BaseObjectType, typename BasePhysicalRepresentationType>
class AbstractRenderer : public AbstractRendererBase<BaseGraphicsContextType, BaseObjectType, BasePhysicalRepresentationType> {
public:
	AbstractRenderer(const std::shared_ptr<BaseGraphicsContextType>& graphicsContext);
	virtual ~AbstractRenderer();

	virtual bool construct(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, BasePhysicalRepresentationType* const physicalRepresentation) = 0;
	virtual void update(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, float dt) = 0;
	virtual void render(BaseGraphicsContextType* const graphicsContext, BaseObjectType* const object, BasePhysicalRepresentationType* const physicalRepresentation) = 0;
};

}

}

}

template <typename RendererImplementationType, typename BaseGraphicsContextType, typename BaseObjectType, typename PhysicalRepresentationType>
Sx::Graphics::Rendering::AbstractRenderer<RendererImplementationType, BaseGraphicsContextType, BaseObjectType, PhysicalRepresentationType>::AbstractRenderer(const std::shared_ptr<BaseGraphicsContextType>& graphicsContext) : AbstractRendererBase(graphicsContext) {}

template <typename RendererImplementationType, typename BaseGraphicsContextType, typename BaseObjectType, typename PhysicalRepresentationType>
Sx::Graphics::Rendering::AbstractRenderer<RendererImplementationType, BaseGraphicsContextType, BaseObjectType, PhysicalRepresentationType>::~AbstractRenderer() {}

#endif
